Stephen wilcox



S. WILCOX.

(No Model.)

GAS ENGINE.

Patented June 15 WITNESSES:

t the line :t az, Fig. l.-

'extended clininbcr of Unire Sjinfne f YORK',

STEPHEN WiLooX, on neoonLYn, New

eneuilzngenee.-A

iepncrrmn'rzen forming me er y y :i einwenig. neeffie, einen rune 1s;

I Applcniinn filed October 12.15385. Serial No. 179,566. (Noinodell ieee.

To all wwm, z5 may concern: i i

Beit known that I, STEPHEN W1 X, of endet-ting coincide-nt therewith; Brooklyn, in the county of Kings and tate of i New York, have invented el new end neeinl Improvement in Ges-Engines, oilwhicii, the." following is n specicetion,-reference inning had to the accompanying'drawingsL'iorrning part of the snme, in Wbicn-`YY Fignrel'represenis a ongitndinel section ei :t gals-engine, cylinders, and adjunct-@embody- The piston bis constructed with e' trunk', e, that passes tiirongn n stniiing-box, end 'with en .interior connection, 9, townich tbe oonnegt'ngfrod of the engi tra nleirengemnt providing an 'annular space that ievntilized'as the airpnmp chamber, tire pistoni: noting eetlienir-pnmp.

h represents awrought-ironjnokct surround ing the cest-iron shellof the extended cylindercianmber c, Itiie'iatter being consti-noted with external ribs or projections z', (shown in the erosie-sectional vie\v,YFig."2,) against which the jacket. is oloeely lit-ted. This jncket'h firmly sngaportstheenst-iron bere, a'nd'its elasticity provides for the incidental eonirnctionnnd expansion of the-cyl- .ing my invention;an(l Fig. 2, etrnnsverse seetion ofa portieri of the cylinder-Weil through In the present instance my invention is embodied in n singlencting engine trnnked et its cool end to form an nir-pump, :ind nt the opi-l posite end of the cylinder provided with an extension-chamber, in which the het gases not upon a plunger connected to tile woriring-pie-` i ton. ff

straighten the Wrought-iron jacket between its pointe oi' bearing on the external projections of thecylinder, Tneconstrnction of, tli'e external Snrfnceof the cylinder neetion with the surrounding vides space for the pnssngeof the nir fno The object of my invention is to eroid the serions loss of heat occasioned inthe cylinder by the surrounding wnterjncket, :ind to pre vent the destruct-ion of the cast-iron shell of the extended clinmberof tbeeylinder by wenn y ing and cracking under the interni-ii iiuctne.- tions ol temperature and pressure, and. eoneequent expansion end contraction.z I

v'il-.eii-wentionconsists in providing thesiiell g of the extended clxexnber with n closeitt'ing jacket of .vronght-iron for supporting and strengthening the saine, the elanticty of the Wrongbtiron jacke?" oviding for tneimiividunl expansion en contraction ofthe shell of the inclosed chamber.

The invention further consiste in the shell of the extended chamber: Witi?k n series of external ribs or projections, and snrronnding the sninc with n close-fitting jacket ol wrought-iron, whereby n clinrnbered space is provided between the enell and jacket i'or the passage of air.

The invention also consists in :isfranging e' water-coil within end against or ndjncent to the plunger, for the purpose of i the latter ntn sn-i'e temperature, nl. fter described end claimed.

In the drawings, a representetlie in which the piston .7J re:;iproentef mdc, the tbe eylinde .in which the hollovr plunger i 'is arranged, the latter t ie admitted to the combustion chan ber or ey'linder,

in pessingtlie compressed nir on ir 'way rointiie nir-pump to tnecombnstiou or cylinder chamber through tnespace tween the chamber and both nre kept at n safe saine time the airis heated.

The airenters providing nir-pump, connected" neer the eylinder, and' passes into the vnlvelehnmber through open`- ings n in the ilenge of the valve-chamber nozzle, thus passing intermcdiately overv the entire surface of the cylinder-chamber tu tliie the latter being also for water-eircnletion.

cylinder,

neing eonneeterl directly with tiiepiston,l

is also provided shell of the chain-f luder, the expansion of the letter tending toy shown in com jacket :also pro-A provide'd'- nev itesnrrounding jacket, l temperature, endet the tile jacketthrough nfpipe, m, leading from the working-cylinder is waier-jeelocted as im' as" m the I nir-pump to the valve-chamber k, from which rco g. agenzie occupy the wliolewidth of the plunger, or rranged in contact withL its sul-fece.v

' tails of construction to which my invention is 5 contincd, I do not deem 1t necessary to acomplete understanding of the invention to herein repeat its Well-knownv Inode of operation.- j jlherefore;,-2YAY What I claim, and desire to secure -by Let-y 1. A cylinder of a gas-engine provided with a closetting continuous wrought-ironjncket 15 tion of the cylinder.

2.1 A cylinder of a. gas engine provided with ribs or projections upon its vexternal surface and a close-fitting continuons AWrought-iron jacket, whereby the range of elasticity of the llett'er is increased and an intermediate space *Y provided, 'through Vwhich the compressed air Having now fully described the various de passes' on its way 'tothe cylinder.

3. 'in a. gas-engine, scribed; a water'crculatng ,pipe or coil arranged within and adjacent to or in contact with the piston-plunger e. A' cylinder of a gas-engine having its exi l tended-portion constructed with n grooved extermal surface and provided .with :i close-fitting wrought-iron jacketto form npassage for the compressed air owing to the cylinder, and having that portion of its'surface adjacent to the piston provided with a, watenjackct.

STEPHEN WILCOX.-

Witnesses:

- AUG. WHITE,

Gans. W. FORBES.

substantially 'as de.. 

